how to update a column with multiple values in mysql code example

Example 1: mysql update multiple rows with different values

UPDATE config
   SET config_value = CASE config_name 
                      WHEN 'name1' THEN 'value' 
                      WHEN 'name2' THEN 'value2' 
                      ELSE config_value
                      END
 WHERE config_name IN('name1', 'name2');

Example 2: mysql updating multiple column values from array variable

"UPDATE product_list 
set 
product_name='$product_name', 
product_category ='$product_category', 
product_price='$product_price',
product_description='$product_description',
product_size_category='$size_category'
where product_id='$product_id'
"

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Sql Example